Can't give you a precise answer since I have no idea the makes and models of the TV and DVD.
Yellow RCA jack would be composite video. The white RCA jack is mono audio. If the DVD has two audio outputs choose one and connect it to the white RCA jack. If it doesn't have these outputs at all then you would need an active HDMI to AV converter. A passive cable won't work.
The TV remote should have a button labeled input or TV/Video. Older TVs sometimes went to the video input by channel tuning below 2.